Your car has no timing belt. The cam is chain driven. How did it crack? These cars had alot of head problems..I wouldn't doubt if the tech gets in there and the head is falty. BIG MONEY if this is the case. Be carefull. I'd say around 1,000 give or take a few hundred if it is a straight forward gasket. Be sure to have them check the piston height. They were know to bend rods too.